JPH02142683U - - Google Patents

Info

Publication number

JPH02142683U

JPH02142683U JP5030589U JP5030589U JPH02142683U JP H02142683 U JPH02142683 U JP H02142683U JP 5030589 U JP5030589 U JP 5030589U JP 5030589 U JP5030589 U JP 5030589U JP H02142683 U JPH02142683 U JP H02142683U

Authority

JP

Japan

Prior art keywords

core material

cleaning tool

pipe

outlet hole

impregnated

Prior art date

1989-04-27

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000004140 cleaning Methods 0.000 claims description 5
• 239000011162 core material Substances 0.000 claims description 4
• 239000007779 soft material Substances 0.000 claims 1
• 239000000126 substance Substances 0.000 claims 1
• 230000004048 modification Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1